Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 25 · 40 questions

Thinking tip (Enough facts, then decide): Not enough evidence: “One mango was sour, so all are sour.” Enough: “We checked all 40 mangoes; every one was ripe.” Before you answer, check every fact you need is given. 7 rows with 9 in each → 7 × 9 = 63. “A box has 9 in each row” with no number of rows → not enough info. Missing facts hide in words like “and a bag”, “older” (by how much?) and “a long film” (how long?).

1. 1.🧩 A box has 7 rows of laddoos, with 8 in each row. How many laddoos are in the box? (a) 56 (b) 64 (c) 15 (d) not enough info
2. 2.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
3. 3.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
4. 4.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 7 PM (b) 8 PM (c) not enough info (d) 9 PM
5. 5.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) False (b) True
6. 6.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
7. 7.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) no mango is sweet (b) yes, it is certain (c) no, check more (d) yes, mangoes match
8. 8.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 2 PM (b) not enough info (c) 5 PM (d) 4 PM
9. 9.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
10. 10.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
11. 11.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) False (b) True
12. 12.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) False (b) True
13. 13.🧩 Diya bought 4 markers for ₹100 in all. Each marker cost the same. What did one marker cost? (a) not enough info (b) ₹100 (c) ₹25 (d) ₹30
14. 14.🧩 A box of guavas has 9 in each row. How many guavas are in the box? (a) not enough info (b) 9 (c) 18 (d) 90
15. 15.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) True (b) False
16. 16.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
17. 17.🧩 A box has 3 rows of laddoos, with 9 in each row. How many laddoos are in the box? (a) 27 (b) 12 (c) 36 (d) not enough info
18. 18.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) all dogs are mean (c) dogs hate you (d) that one dog barked
19. 19.🧩 Vihaan is 6 years old. Rohan is older than Vihaan. How old is Rohan? (a) 11 (b) 8 (c) not enough info (d) 7
20. 20.🧩 A box has 5 rows of apples, with 9 in each row. How many apples are in the box? (a) 54 (b) 14 (c) 45 (d) not enough info
21. 21.🧩 Aarav is 6 years old. Meera is 6 years older than Aarav. How old is Meera? (a) 6 (b) 13 (c) not enough info (d) 12
22. 22.🧩 Vihaan is 8 years old. Kabir is older than Vihaan. How old is Kabir? (a) 9 (b) not enough info (c) 13 (d) 10
23. 23.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 2 PM (b) not enough info (c) 3 PM (d) 4 PM
24. 24.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
25. 25.📝 What does “evidence” mean? (a) a guess (b) a loud opinion (c) a rumour (d) facts that support it
26. 26.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) False (b) True
27. 27.🧩 Nisha bought 3 kites for ₹180 in all. Each kite cost the same. What did one kite cost? (a) ₹180 (b) ₹60 (c) ₹65 (d) not enough info
28. 28.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
29. 29.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 6 PM (b) 7 PM (c) not enough info (d) 5 PM
30. 30.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
31. 31.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
32. 32.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) True (b) False
33. 33.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) False (b) True
34. 34.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking one friend (c) guessing (d) asking the whole class
35. 35.🧩 Diya is 6 years old. Kabir is older than Diya. How old is Kabir? (a) 11 (b) not enough info (c) 8 (d) 7
36. 36.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) not enough info (b) 4 PM (c) 6 PM (d) 5 PM
37. 37.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
38. 38.🧩 A box has 3 rows of eggs, with 5 in each row. How many eggs are in the box? (a) not enough info (b) 8 (c) 20 (d) 15
39. 39.🧩 Before solving a word problem, first check… (a) the page number (b) your handwriting (c) what facts are given (d) the colour of ink
40. 40.🧩 Rohan is 7 years old. Aarav is 6 years older than Rohan. How old is Aarav? (a) 6 (b) 14 (c) 13 (d) not enough info

Free critical thinking lessons, practice and worksheets at talentjr.in/critical-thinking-for-kids